Saturday, August24, 2019 L-36.com


Marine Weather and Tides
Felida, WA

Version 3.4
NOTICE
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 6:19AMSunset 8:07PM Friday August 23, 2019 9:15 PM PDT (04:15 UTC) Moonrise 11:13PMMoonset 1:27PM Illumination 39% Phase: Third Quarter Moon; Moon at 23 days in cycle
NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.
Marine Forecasts
    EDIT      (on/off)   Help
PZZ210 Columbia River Bar- 211 Pm Pdt Fri Aug 23 2019
In the main channel.. - general seas...1 to 3 feet through Friday. - first ebb...around 1115 pm Friday. Seas building to 4 feet. - second ebb...around 1130 am Saturday. Seas building to 4 ft. - third ebb...around 5 pm Saturday. Seas building to 4 ft.
PZZ200 211 Pm Pdt Fri Aug 23 2019
Synopsis for the southern washington and northern oregon coast.. High pressure over the waters with a thermal low along the north california and south oregon coast will continue through Friday. A trough temporarily weakens the high pressure during the weekend.


7 Day Forecast for Marine Location Near Felida, WA
   Hourly   EDIT   Help
location: 45.73, -122.75     debug


Area Discussion for - Portland, OR
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus66 kpqr 240359
afdpqr
area forecast discussion
national service portland or
858 pm pdt Fri aug 23 2019

Updated aviation and marine sections
Synopsis Seasonable weather through this weekend, with areas of
morning clouds. Warmer weather is expected next week with interior
temperatures likely warming into the upper 80s to lower 90s.

Short term This afternoon through Tuesday... An upper trough
approaching british columbia is beginning to flatten the upper ridge
today for a more zonal weather pattern that will persist through
Sunday. A surface low associated with the upper trough to the
north will form a weak surface front that will brush by the south
washington coast and willapa hills on Saturday. This will result in
increased clouds along the coast and extreme SW washington, and
occasional light rain. Increased pops to chance for the southern
washington and northern oregon coasts, willapa hills, and coast
range. It looks like there's a decent chance at a few hundredths of
accumulation, although not sure if it will fall as drizzle or light
rain. Could even see a bit of drizzle on the eastern slopes of the nw
coast range, near banks, cornelius, and forest grove. This weak front
and clouds will also result in slightly cooler temperatures Saturday
afternoon. Seasonal, dry weather is expected for Sunday with clouds
returning to the coast and parts of the willamette
valley in the morning and clearing in the afternoon.

The upper ridge begins to amplifies on Monday, beginning a warming
trend. Latest model runs show thermal troughing developing over
western oregon on Monday, resulting in light offshore flow. This will
magnify the heating a little bit Monday if offshore flow develops
early enough in the day. Thermal troughing moves over the willamette
valley Tuesday, which is a typical local hot pattern. Upped
temperatures a few degrees, blending the ECMWF and nbm. The ECMWF is
the hottest model currently, but usually does pretty well with hot
temperatures. There is the potential that Tuesday could see the
hottest temperatures of the summer so far, but models have been a
little bit squirrelly over the past couple of days, so still not
completely confident in actual temperatures. Either way, it looks
hot. Bowen

Long term Tuesday night through Friday... Wednesday looks much the
same as Tuesday in the upper levels, but at the surface, the thermal
trough moves offshore. Models are actually showing kind of a
splitting of the thermal trough and the beginnings of a
southwesterly push, which complicates temperatures. For most areas,
Wednesday will likely be similarly hot to Tuesday, but there's some
chance that the southern portion of the forecast area will cool
Wednesday. Models show the upper level remnants of a long-deceased
tropical system interrupting the ridging Thursday into Friday, which
should bring at least a few degrees of cooling and end the offshore
flow. Overall for next week, it still looks hot, as it has for a few
days now, but still not confident in exactly how hot. Bowen

Aviation WidespreadVFR conditions prevail this evening.

However, high clouds are now increasing in advance of a weak
frontal boundary approaching from the north. This front will
likely produce areas of drizzle or light rain along the north
oregon and south washington coast late tonight, by around 12z,
along with low MVFR or ifr CIGS and vsbys. The lowered CIGS will
likely reach the central oregon coast by 15z. The front will
decay significant by the time it moves onshore Sat morning, but
expect that it will hold together enough to drag some lower
clouds east of the coast range. Expect conditions to remainVFR
for the interior TAF sites through sat, but will bring some
broken mid-level clouds into the pdx metro area TAF sites after
18z.

Kpdx and approaches...VFR conditions likely to prevail through
sat. A decaying frontal boundary may bring some broken lowVFR
cigs between 18z Sat and 03z sun. There is a slight chance that
cigs briefly drop to MVFR Sat afternoon. Pyle

Marine High pressure remains over the NE pacific through the
weekend, with thermal low pressure over northern california and
southern oregon. This will lead to continuing n-nw winds. Winds
may occasionally gust to around 20 kt through around midnight,
but will subside overnight and Saturday. The remnants of a weak
frontal boundary will move through the waters early Saturday, but
have little impact. Northerly winds will become gustier Sunday
afternoon and continue through the first couple of days of next
week. Expect gusts of 25 to 30 kt during this time, with the
strongest winds during the afternoon and evening hours and over
the central oregon waters. The thermal trough over southern
oregon is modeled to build northward into the north oregon waters
toward the middle of next week, which could lead to a brief
period of offshore winds extending into the waters.

Seas remain around 4 to 5 ft this evening, but will increase a
foot or two over the weekend as a NW swell with a dominant period
of 11 to 12 seconds arrives. Seas will likely become choppy
early next week in response to the increasingly gusty northerly
winds. Pyle

Pqr watches warnings advisories
Or... None.

Wa... None.

Pz... None.

Interact with us via social media:

Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
LOPW1 - 9440422 - Longview, WA 28 mi45 min 70°F1012.4 hPa
ASTO3 - 9439040 - Astoria, OR 63 mi45 min NW 5.1 G 8 64°F 70°F1014 hPa
TLBO3 - 9437540 - Garibaldi, Tillamook Bay, OR 63 mi45 min 53°F1013.8 hPa

Wind History for Longview, WA
(wind in knots)    EDIT      (on/off)   Help
Last
24hr
1 day
ago
2 days
ago

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports. Follow links for more data.
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Scappoose Industrial Airpark, OR7 mi2.4 hrsNNW 710.00 miFair77°F57°F50%1010.4 hPa
Pearson Airfield, WA9 mi2.4 hrsNNW 310.00 miFair81°F51°F35%1010.4 hPa
Portland, Portland International Airport, OR11 mi2.4 hrsN 810.00 miMostly Cloudy81°F50°F34%1010.3 hPa
Portland-Hillsboro Airport, OR17 mi2.4 hrsENE 710.00 miFair80°F54°F41%1010.3 hPa
Portland, Portland-Troutdale Airport, OR22 mi2.4 hrsN 010.00 miFair80°F52°F38%1010.3 hPa

Link to 5 minute data for KSPB

Wind History from SPB (wind in knots)
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
Last 24hrNW4NW3N5N5CalmCalmN3CalmN4NW3N3N4NE66N7N9N9N10
G15
N9N10
G15
N7N7N6NW6
1 day agoNW7N43N7N5N5CalmW3SW3CalmCalmCalmCalmN5NW6N55NE8NE13
G16
NE9N10N7NW3NW3
2 days agoN5CalmCalmW3CalmW3W4CalmCalmW3CalmCalmSE6SE9SE5SE5SE5SE8CalmS6SE3CalmCalmCalm

Tide / Current Tables for Vancouver, Columbia River, Washington (dubious accuracy)
   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Vancouver
Click for Map
Sat -- 12:12 AM PDT     Moonrise
Sat -- 01:45 AM PDT     1.70 feet High Tide
Sat -- 06:18 AM PDT     0.50 feet Low Tide
Sat -- 06:21 AM PDT     Sunrise
Sat -- 07:30 AM PDT     0.53 feet High Tide
Sat -- 10:34 AM PDT     0.15 feet Low Tide
Sat -- 02:38 PM PDT     1.13 feet High Tide
Sat -- 03:33 PM PDT     Moonset
Sat -- 05:58 PM PDT     0.61 feet Low Tide
Sat -- 08:03 PM PDT     Sunset
Sat -- 08:33 PM PDT     0.84 feet High Tide
Sat -- 10:36 PM PDT     0.71 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
1.31.61.71.510.70.50.50.50.40.20.20.40.81.11.10.90.70.60.70.80.80.70.7

Tide / Current Tables for Knappa, Knappa Slough, Columbia River, Oregon
   EDIT      (on/off)   Help   One Week of Data
Knappa
Click for Map
Sat -- 12:14 AM PDT     Moonrise
Sat -- 03:30 AM PDT     0.71 feet Low Tide
Sat -- 06:24 AM PDT     Sunrise
Sat -- 09:34 AM PDT     5.16 feet High Tide
Sat -- 03:01 PM PDT     2.30 feet Low Tide
Sat -- 03:38 PM PDT     Moonset
Sat -- 08:07 PM PDT     Sunset
Sat -- 08:43 PM PDT     7.28 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
3.121.20.80.81.42.43.54.55.15.14.73.93.12.52.32.63.54.96.27.17.36.85.9

Weather Map and Satellite Images
       (on/off)   HelpWeather Map
wmap_P
GOES Local Image of PacificNorthwest    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Portland, OR (0,6,7,8)
      (on/off)   Help

Ground Weather Radar Station Portland, OR
   (on/off)   Help
weather_mapweather_map weather_map

Ad by Google

Disclaimer:
The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with L-36.com. I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerious of sources and is presented automatically. It is not checked for accuracy either by anyone at L-36.com or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.